ObjFW  Diff

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
 *   Jonathan Schleifer <js@webkeks.org>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

{
	int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
	    OF_BLOCK_FIELD_IS_OBJECT | OF_BLOCK_FIELD_IS_BYREF);

	if (src_ == NULL)
		return;

	if (flags_ & OF_BLOCK_BYREF_CALLER)
		return;

	switch (flags) {
	case OF_BLOCK_FIELD_IS_BLOCK:
		*(of_block_literal_t**)dst_ = _Block_copy(src_);
		break;
	case OF_BLOCK_FIELD_IS_OBJECT:

		*(id*)dst_ = [(id)src_ retain];
		break;
	case OF_BLOCK_FIELD_IS_BYREF:;
		of_block_byref_t *src = (of_block_byref_t*)src_;
		of_block_byref_t **dst = (of_block_byref_t**)dst_;

		if ((src->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
			if ((*dst = malloc(src->size)) == NULL) {
				alloc_failed_exception.isa =
				    [OFAllocFailedException class];
				@throw (OFAllocFailedException*)
				    &alloc_failed_exception;
			}

			if (src->forwarding == src)
				(*dst)->forwarding = *dst;

			memcpy(*dst, src, src->size);

			if (src->size >= sizeof(of_block_byref_t))
				src->byref_keep(*dst, src);
		} else
			*dst = src;

		(*dst)->flags++;
		break;
	}
}

void
_Block_object_dispose(const void *obj_, const int flags_)
{
	const int flags = flags_ & (OF_BLOCK_FIELD_IS_BLOCK |
	    OF_BLOCK_FIELD_IS_OBJECT | OF_BLOCK_FIELD_IS_BYREF);

	if (obj_ == NULL)
		return;

	if (flags_ & OF_BLOCK_BYREF_CALLER)
		return;

	switch (flags) {
	case OF_BLOCK_FIELD_IS_BLOCK:
		_Block_release(obj_);
		break;
	case OF_BLOCK_FIELD_IS_OBJECT:

		[(id)obj_ release];
		break;
	case OF_BLOCK_FIELD_IS_BYREF:;
		of_block_byref_t *obj = (of_block_byref_t*)obj_;

		if ((--obj->flags & OF_BLOCK_REFCOUNT_MASK) == 0) {
			if (obj->size >= sizeof(of_block_byref_t))
				obj->byref_dispose(obj);

			free(obj);
		}
		break;
	}
}